8 Pack IO Replacement Heads Compatible with Oral B iO 2 3 4 5 6 7 8 9 10 Series Electric Toothbrush, Brush Heads Compatible with Oral B IO, Medium Bristles for Gum Care & Sensitive Teeth (Black)

So far it performs as advertised. I can't testify to the product life cycle because I just started using it.

We got these to avoid paying an arm and a leg on new Oral-B brush heads for my wife's electric toothbrush. While they fit great, are perfectly compatible, and easy to attach, they're quite firm compared to the name-brand heads. They're also not quite as ergonomic, meaning the name-brand brush heads have longer bristles around the outside and shorter bristles in the middle to contour to your teeth, and these have this a bit, but to all much lesser extent. Can't beat the price, and since they're so firm, I expect they'll be a bit more durable and hold up longer than the softer name-brand heads, but they're not a 1:1 replacement. If you want to save a few bucks, these are a passable alternative.

Ever since I began buying these replacement heads, I knew I never needed to buy the expensive name brand again. I used one of these toothbrush heads and it functions exactly the same as the original ones.Definitely a much better value for my money. The stiffness of the bristles is exactly the same as the ones I got with my new Oral B. And these fit perfectly and are durable. I will definitely be using only these for now on.

The picture listed is twice daily use for several weeks. The quality is good. It has held up well. My son uses it with braces so I am very pleased with it. The price is great for the quality.

These brush heads fit my oral B electric toothbrush perfectly! They don't look QUITE the same, but function just as well as the Oral B name brand ones and for a fraction of the price.However, I have tried a few other generic brands over the years, and this is still on the pricey end as far as generics go. So while these are a step up from buying Oral B, they aren't the MOST cost effective generic toothbrush head out there either.

I have a Oral B Pro 1000 and it's a dang good toothbrush... with some spendy heads. As a result, I try generic/compatible heads on the regular. The usual issue with the generics is sloppy build tolerances, resulting in them not actually rotating when you put any pressure on them at all. When that happens, you basically have a noisy regular toothbrush. (Not going to name names, but let's just say the worst offender is the house brand of a WALled MART.)However, these ones work pretty well! They're obviously different in the shape of the plastic castings and the bristle angle/count. I'm pretty sure they don't have the fancy fading bristles or whatever, either.But all that said... they're significantly more economical and they Actually Work. No reason to get anything else when these are available!

These fit just fine on my toothbrush handle. The bristles are soft but they don't have the little flosser things. Great alternative to pricey refills.

I was somewhat skeptical when ordering these replacement toothbrush heads for my electric Oral B toothbrush. As soon as I used it, I was convinced this is a more economical alternative to more expensive toothbrush heads.Strengths:1 Economical 8 pack.2 Head fit easily onto my Oral B. I tried taking it off and on several times with ease. There was no gap between the handle and the head attachment.3 When using, the brushes worked smoothly and seemed to do a good job of brushing my teeth.Drawbacks:None at this time.Overall:I have only used this product a short time, so I cannot address the durability.